Attenborough, popularly known as the erudite voice behind BBC's Planet Earth documentaries, is no stranger to unique and bizarre animal behaviors. However, there are few species as perplexing as homo sapiens screamius, otherwise known as the common fangirl. As fascinating as they are annoying, these adolescent female humans exhibit herd mentality hysterics often reserved for swarming bees or fleeing Serengeti zebras, and their fleeting obsessive behavior can only be deciphered by zoology's foremost thinkers.